One of the most important factors influencing the safety operation of steam turbine during cold start-up is the determination of warming-up conditions and time at middle speed . Proper increase of rotor temperature can prevent rotor from brittle failure .

汽轮机冷态启动 升速过程中，合理 安排 中速 暖 机，提高转子金属温度，预防脆性损伤是实现汽轮机安全运行的重要内容之一。

Results According to different situation of fracture patient the folding splint 's length can be adjusted avoided complicated warming-up reduced treatment time and improved effect .

结果：本夹板可以根据患者骨折的不同情况选择夹板的长度，从而避免了需要 预先 准备 大量 夹板的繁琐，缩短了对患者的救治 时间，提高了 救治效果。

Under steady-state and transient state conditions efficiency and warming-up time of flat plate water collectors are calculated .

本文提出了在稳态和瞬态条件下，平板型水集热器的效率及其 预热 时间的计算。